Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
There are more than 50,000 earthquakes throughout the world every year!
47
Forest fires move faster uphill than downhill.
52
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
The state of Florida is bigger than England!
74
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61